Idle Roller: Free turning non-sprocketed rollers for guiding film through its appropriate path.

空转轮： 自由转动的，非扣片的卷轴，用于引导胶片通过正确的路径。

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Bradford decided to assign a plot of land to each family to work and manage, thus turning loose the power of free enterprise.

布拉德福德决定给每家每户一小块地皮，让他们去耕作，这一举动放宽了自由企业。

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Red Hat's distribution, Red Hat Enterprise Linux, is comprised of free and open source software (FOSS) and they've been turning a profit for some time doing so.

红帽子分发版、红帽子企业版，它们包含了自由和开源软件（FOSS），他们从中获取利益已经一段时间了。

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Over the past five years, nations have begun to put that strategy into place through a new network of institutions and arrangements with distinct missions but a common purpose: to secure and strengthen the gains of democracy in free markets while turning back their enemies.

CNN: Text Of Clinton's Remarks To The United Nations

And in a stark sign that the recession is now inflicting severe pain on the employed as well as the jobless, the number of working Americans turning to free government food stamps has surged.

CNN: Commentary: Panic anniversary no reason for joy

So what started as a fight between Darfuris and Arabs may be turning into a free-for-all, not least for profiteers.

ECONOMIST: Sudan